Sash-lock.



R. O. BEACH.

SASH LOCK.

APPLICATION man 1uLY21, I914.

1,13%302, Patented Apr. 27, 1915.

WITNESSES: XNVENTOR THE NORRIS PETERS CO-, FHOTO-LlTHO-, WASHINGTON. D.C.

an era ROBERT O. BEACH, 015 SAN FRANCISCO, CALIFORNIA, ASSIGNOR OFONE-HALF TO EDWARD W. WEILAND, OF SAN FRANCISCO, CALIFORNIA.

SASH-LOCK.

Specification of Letters Patent.

Patented Apr. 27, 1915.

Application filed July 27,1914. Serial No. 853,267.

To all whom, it may concern:

Be it known that 1, ROBERT O. BEACH, a citizen of the United States,residing in the city and county of San Francisco and State ofCalifornia, have invented new and useful Improvements in Sash-Locks, ofwhich the following is a specification.

This invention relates tosash locks.

It is an object of the present invention to provide a sash lockconstructed with a stamped, bent and interlocked sheet metal casing,thus providing a cheap and substantial housing for the lock. 7

A further object of the invention is to provide a sash lock comprising abar attachable to one of the sashes, which coacts with a dog adjustablymounted in a lock housing; the

. sash bar and the dog cooperating tolock the sashes in any relativeposition against movement in either dlrection.

The inventlon consists of the parts and i the construction andcombination of parts as hereinafter more fully described and claimed,having reference to the accompanying drawings, in which Figure 1 isa-vertical section through the meeting portions of the window sasheswith the lock in place and applied. Fig. 2 is a perspective of the lock.Fig. 3 is a section on line 3-8 of Fig. 4. .Fig. i is a section on linel1 of Fig. 3. Fig. 5 is a section on line 55 of Fig. 3.

2 indicates the top rail of an inner window sash, and 3 the bottom railof an outer window sash; to the latter there being se-.

cured a toothed or rack bar a which is 8. The shank of the actuatingscrew is pro engageable by the adjacent end of a looking dog 5. This dog5 is shown in Fig. 3 as pivotally related at 6, to a slide member 7which is threaded upon an actuatingscrew vided with an annulargroove 9.which is embraced by the-overlapping rear walls 10 and 11 of the housingA of the lock.

The housing A consists of a top portion with downwardly turned sideWalls a,-a and the downwardly turned back wall 10, which is slotted at10 to receive the neck of the adjusting screw. 'To the bottom of thehousing A is applied a bottom plate B which has, at its rearrend,anupwardly turned portion 11 which is slotted at 11 to fit the neckportion of the screw shank 8; the slotted walls 10 and 11 forming, asstated, a seat for embracing the screw to permit the latter to rotatebut prevent its longitudinal movement. The top ofv the by foldable lugsb.

The dog 5 is normally swung'upwardly about its pivot 6 on the member 7by a contractile spring 12, one end ofwhich is connectedjto a tongue. 13punched upwardly from the dog 5; the opposite end of the spring 12 beingattached to a hook 14: on the adjacent side of the sliding member 7. Theupward movement of the dog 5 under the actionof the spring 12 is limitedby an overhanging lip 16 at the end of the housing A. The bottom plate Bis provided on opposite sides with ears 1? for the reception of screwswhereby the lock may be housing A and the bottom B are interlockedsecurely fastened to the rail of the window sash.

In operation, with the locking toothed bar & securely fastened to theinner surface of a sash, as 3,'and with thelock structure, including thehousing and its mechanism secured to the top rail of the sash, as 2, thelocking dogs is retracted from its projected position in front of thehousing by means of the screw 8 which may be turned in its bearingsformed by the overlapping back walls 10 and 11. When the dog 5 isretracted, the sashes 2 and 3 may. be moved relative to each otherfreely without the dog engaging the rack bare; When it is desired tolock the sashes in any desired position, the screw 8 is turned so as toshift the actuating member I 7 forwardlywhich tends to project the dog 5outwardly 'into engagement with the toothed locking bar 4'. When thisengagement has been obtained neither of the'sashes can be moved eitherway, owing to the re action; of the dog 5 at one end upon the lock-'ingbar 4- and at the opposite end against the member 7 which is heldstationary by its any window by the mere fastening of the locking bar 4and the lock housing A to respective sashes, and which deviceeffectually operates to lock the sashes at any posi tion andagainstmovement in any direction of either and which may be quickly and easilylocked and unlocked by any person and cannot be tampered with from theoutside. The screw 8 may be of double pitch thread so that the slidingblock will move forwardly and rearwardly rapidly for a small movement ofthe screw.

Having thus described my invention, what I claim and desire to secure byLetters Patcut is 1. A window sash lock comprising a toothed barapplicable to one of the sashes, a locking device applicableto the othersash, said device comprising, a housing "with a portion forming a seatand having an opening in its opposite end, an upwardly inclined,yieldably suspended locking dog projecting through said aperture, aslidable member on which the dog is pivoted and means including a screwturnably fitting said seat and held thereby against longitudinalmovement for projecting and retracting said dog to and from engagementwith said rack.

2. A window sash lock comprising a toothed bar applicable to one of thesashes, a locking device applicable to the other sash, said devicecomprising a housing with a portion forming a seat and having an openingin its oppositeend, a locking dog projecting through said aperture,means. including a sliding member and a screw turnably fitting said seatand held thereby against longitudinal movement for projecting andretracting said dog to and from engagement with said rack, and a springfor suspending said dog and permitting its pivotal movement.

3. A sash lock comprising the combination of a dog mounted upon one sashand engageable with a toothed surface on the adjacent opposite sash, aslidable member on which the dog is pivoted, a spring connecting the dogand the member for suspending the dog in an inclined position, and meansfor actuating said member so as to project the dog into lockingengagement-with said toothed surface and for disengaging the dogtherefrom.

4. A sash lock comprising the combination of a dog mounted upon one sashand engageable with a toothed surface on the adjacent opposite sash, aslidable member for the dog, a spring for suspending same in an inclinedposition, and means for actuating said member so as to project thedoginto locking engagement with said toothed surface and for disengagingthe dog therefrom, said means comprising a screw mounted fornon-longitudinal movement and threaded in said member.

5. A sash lock comprising the combination of a dog mounted upon one sashand engageable with a toothed surface on the adjacent opposite sash, aslidable member for the dog, a spring for suspending same in an inclinedposition, meansfor actuating said member so as to project the dog intolooking engagement with said toothed surface and for disengaging the dogtherefrom, said means comprising a screw mounted for non-longitudinalmovement and threaded in said member, with means for limiting theswinging movement of the dog, and means for limiting the longitudinalmovement of the sliding member.

6. In a sash look, a two-part stamped metal housing with integralfastening lugs, one of said parts forming a box and the other formingthe bottom thereof, each part having overlapping U-shaped end walls '00-operating to form a circular aperture, a screw with a slotted shank inthe aperture, a sliding member mounted upon the screw 7 and non-turnablyfitting in the housing, one

ROBERT o. BEACH.

Witnesses:

W. V. HEALEY, M. EWING.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of' Patents, 7

- Washington, I). 61"

